'''Louis Henry Sullivan''' (September 3, 1856 – April 14, 1924)
[The spelling of Sullivan's middle name (whether Henry or Henri) has caused confusion. According to Robert Twombly, "Louis Sullivan – His Life and Work" (Elizabeth Sifton Books, New York City, 1986),
his birth certificate read Henry Louis Sullivan, although he was called Louis Henry. Sullivan helped propagate confusion over his middle name as well by announcing, in his book "Autobiography of an Idea", which he wrote at the end of his life, at a time when professional failure and alcohol may have clouded his judgment, that he had been named Louis Henri after his grandfather Henri List (see footnote below). The latter spelling was in turn enshrined by the designers of his funerary monument (see picture in text).]
was an United States|American architect
, and has been called the "father of skyscrapers"
[Kaufman, Mervyn D. (1969). ''Father of Skyscrapers: A Biography of Louis Sullivan.''... ]